Rotating Assemblies - got a few Q's?

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Fubar02GT

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Jul 30, 2005

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Bradford

Oct 22, 2005

#1

• Oct 22, 2005

• #1

Well, i'm thinking of playing it smart before i get stupid and actually building the bottom end first. I haven't found any really good deals on rotating assemblies so far, except from Sean Hyland. It appears the 4.6L Forged rotating assemblies right now are 1495 and to go 5.0L stroker it's 1995...

http://www.seanhylandmotorsport.com/online/product_info.php?cPath=65&products_id=1171

my first question would be is it overall worth it for the extra 500 bucks to go to a 5.0L? what clearencing is required with a stroker crank in these blocks? i'm at a loss as to what to do with the pistons. Basically i'm unsure wether i want to run boost or juice. I'm figuring a fairly high compression 5.0L for juice would be nice, but then if i ever strip the NOS i'm kinda dicked for boost. My orig. plan was for a Vortech mongoose kit...i'm kinda torn really. Any ideas as far as that's concerned? i figured i could get the plate kit now, play with a 100 shot, forge the bottom end, and rack up the shot come summer...or keep the compression and the NOS respectable, and just add the vortech as money permits...

thoughts...suggestions?

 

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Fubar02GT

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Jul 30, 2005

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Oct 23, 2005

#2

• Oct 23, 2005

• #2

ttt

 

DBMSTNG

I fantasize about it being BIG!

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not quite here

Oct 23, 2005

#3

• Oct 23, 2005

• #3

who do you plan on assembling the shortblock? personally i'd rather get one from someone i trust already assembled. N/A you'll gain torque with the 5.0L but lose some power up top with the stock heads/cams. FI or with ported heads they will produce more upper rpm power. is it worth it? depends on your goals and how much you are willing to spend.

 

Word_Life

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Jun 30, 2005

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East Coast Lyfe

Oct 23, 2005

#4

• Oct 23, 2005

• #4

If you go for a 5.0 Stroker you' have to have the block machined.

SHM has been known to shaft people lately. Choose someone else.

 

ponysarepretty

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Jul 25, 2005

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Oct 23, 2005

#5

• Oct 23, 2005

• #5

DBMSTNG said:

who do you plan on assembling the shortblock? personally i'd rather get one from someone i trust already assembled. N/A you'll gain torque with the 5.0L but lose some power up top with the stock heads/cams. FI or with ported heads they will produce more upper rpm power. is it worth it? depends on your goals and how much you are willing to spend.

Click to expand...

I think a lot of people seem to have misconceptions about torque and power, power is a function of torque. if you gain more torque you will gain more power, however if you lose torque and rev higher, you may still gain power.

anyway the equation is:

hp = rpm*tq/5250

 

03ghoststang

Well-Known Member

Jul 16, 2005

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Los Angeles, California

Oct 23, 2005

#6

• Oct 23, 2005

• #6

if you plan on getting a rotating assembly you actually can have them drop the compression ratio if you plan on going supercharged. Same deal for your forged bottom end but it all comes down on what you really want to do either nitrous or FI.

 

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Fubar02GT

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Jul 30, 2005

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Oct 23, 2005

#7

• Oct 23, 2005

• #7

i guess i'll be staying 4.6 then for now, because i lack the cash for the machine work, however i am confident in my engine building skills. I've done my TSi twice, the big block for my corvette, a friends LT1, and a couple 5.0's so i think i should be able to handle a modular. I'd also rather do it myself so i know if i grenade it...it truly was my fault...

who would you suggest for a fully forged rotating assembly then?

 

03ghoststang

Well-Known Member

Jul 16, 2005

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Oct 23, 2005

#8

• Oct 23, 2005

• #8

YES everyting pistons, rods and get a cobra crank

 

F

Fubar02GT

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Jul 30, 2005

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Oct 23, 2005

#9

• Oct 23, 2005

• #9

any particular vendors is what i actually meant. i pretty much knew it was gonna be a cobra crank but what about the internals? i'm not sure about a drop in compression. isn't ours already low as it is comparatively to other motors?

 

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VividDreams

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Oct 24, 2005

#10

• Oct 24, 2005

• #10

Check out Coast High Performance at http://www.coasthigh.com/Assemblies/Ford/ford_4_6.htm

the Nodular iron that the cranks are made of in their street fighter kits are supposed to be pretty strong

or you could step up to their cast steel units

all kits us Probe Pistons

 

F

Fubar02GT

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Jul 30, 2005

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Oct 25, 2005

#11

• Oct 25, 2005

• #11

I did get a quote from VT, and based on the price/quality/rep...they appear to be the front runner. Might even try to score a set of stage 2 blower cams from them as well since the motor's gotta come apart might as well do the top end too!

 

D

Drag_on

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Oct 12, 2005

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Oct 27, 2005

#12

• Oct 27, 2005

• #12

VividDreams said:

Check out Coast High Performance at http://www.coasthigh.com/Assemblies/Ford/ford_4_6.htm

the Nodular iron that the cranks are made of in their street fighter kits are supposed to be pretty strong

or you could step up to their cast steel units

all kits us Probe Pistons

Click to expand...

Don't even look at coast high. You will need some better pistons than probe.

 

V

VividDreams

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Jan 2, 2005

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Lebanon County, PA

Oct 27, 2005

#13

• Oct 27, 2005

• #13

really, probe isnt good? theyre forged.....a lot of race cars use probe....

dunno

 

tomustang

Psychotic Member

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Oct 27, 2005

#14

• Oct 27, 2005

• #14

Fubar02GT said:

I did get a quote from VT, and based on the price/quality/rep...they appear to be the front runner. Might even try to score a set of stage 2 blower cams from them as well since the motor's gotta come apart might as well do the top end too!

Click to expand...

d00d you're close to Kaffmans give them a ring and see what say